River RD over Shady Oaks Slough
FairButte County, California · 3.66 MI N Ord Ferry RD · Structure no. 12C0316
- Built
- 1931
- 94 years old
- Condition
- Fair
- inspected May 2024
- Type
- Stringer/Multi-beam or Girder
- Steel
- Length
- 32 ft
- 2 main spans
- Daily traffic
- 1,256
- 2006 count
- Owner
- County
- County Highway Agency
About this bridge
River RD over Shady Oaks Slough is a steel stringer/multi-beam or girder carrying River RD over Shady Oaks Slough in Butte County, California. It was built in 1931, so it is 94 years old, older than the California average of 54.8 years.
The most recent inspection reported to the Federal Highway Administration rates it in fair condition with a lowest component rating of 5 out of 9. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.
It carries about 1,256 vehicles a day, roughly 8% of them trucks, projected to reach 820 by 2046. The structure is 32 ft (9.8 m) long and 29 ft wide. If it were closed, the detour would be 18 mi (29 km).
Location
Open in Google MapsCondition and inspection
The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.
| Component | Rating | Meaning |
|---|---|---|
| Deck | 7 Good | Some minor problems. |
| Superstructure | 5 Fair | All primary structural elements are sound but may have minor section loss, cracking, spalling or scour. |
| Substructure | 5 Fair | All primary structural elements are sound but may have minor section loss, cracking, spalling or scour. |
| Channel and channel protection | 7 Good | Some minor problems. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was River RD over Shady Oaks Slough built?
It was built in 1931, making it 94 years old in 2025.
What condition is River RD over Shady Oaks Slough in?
The National Bridge Inventory rates it in fair condition. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound. The last reported inspection was in May 2024.
How much traffic does River RD over Shady Oaks Slough carry?
About 1,256 vehicles per day (2006 count), of which roughly 8% are trucks.
How long is River RD over Shady Oaks Slough?
The structure is 32 ft (9.8 m) long with a longest span of 15 ft (4.6 m) and a deck 29 ft wide.
Who owns River RD over Shady Oaks Slough?
It is owned by the County Highway Agency.